Sydney man charged over 12th sex attack

A man accused of sexually and indecently assaulting women and children across Sydney over a two month period last year is facing more charges after an alleged twelfth victim came forward.

The 26-year-old man was charged in June 2016 with a string of offences after he allegedly raped a woman in a Sydney motel room, before kidnapping and repeatedly sexually assaulting a teenager in the city's west.

He was later charged with the alleged sexual and indecent assaults of another nine victims, including a 10-year-old girl.

On Tuesday the man, who is at a correctional facility in western Sydney, was charged over the alleged sexual assault and robbery of a 20-year-old woman at knifepoint in Parramatta last May.

He has been charged with numerous offences including two counts of aggravated sexual assault and robbery armed with an offensive weapon and is due to face Central Local Court on Wednesday.